You should know that you can predict changes in coordinates after translations without a graph or anything like that.
(x, y) reflected over the x axis = (x, -y)
(x, y) reflected over the y axis = (-x, y)
(x, y) rotated 90 degrees around the origin = (y, -x)
(x, y) rotated 180 degrees around the origin = (-x, -y)
(x, y) rotated 270 degrees around the origin - (-x, y)
So here's our set of points.
A(1, 2), B(4, 6), C(4, 6)
Here's those points reflected over the x axis.
A'(1, -2), B'(4, -6), C'(4, -6)
And here's <em>those</em> points rotated 180° around the origin.
A''(2, -1), B''(6, -4), C''(6, -4)
I think you made a mistake writing down the question, though, because B and C are the same yet you say ABC forms a triangle. You should be able to go through this process with whatever the coordinate was supposed to be.
1) $450/12=$37.50
2)$37.50x3=$112.50
The answer is: $112.50
I hope this helps
Answer:
simplified version is 
Step-by-step explanation:
1.) find possible factors to 27 that have one perfect root (in this case, its 9)
2.) square each number in the radical
3.) simplify
6(x + y) + (x - y) =
First, distribute the 6. Also, remove the second set of parentheses since it is unnecessary.
= 6x + 6y + x - y
Now add like terms. Remember that x is the same as 1x, and y is the same as 1y.
= 7x + 5y
Answer: 7x + 5y
